Home Forms Power Of Attorney (POA) / Disclosure Forms Withholding Tax Information Authorization Withholding Tax Information Authorization Withholding Tax Information Authorization Form Number 821 Category POA and Disclosure Forms Withholding Forms Form Year Form Instructions Publish Date 2023 Download Download 01/01/2024 2022 Download Download 01/01/2023 2021 Download Download 01/01/2023 2020 Download Download 01/01/2023 2019 Download Download 01/01/2023 Main navigation Corporate Tax Forms Individual Forms TPT Forms Power of Attorney Tax Credits Forms See All Forms